I am so sorry this attack happened to you,perhaps would be a good idea to get help by seeing your Doctor he will help you get your alcohol under control, you will need help from a counselor /therapist for the other symptoms you are experiencing, The panic attacks and anxiety are probably from the attack ,definatly get some help this is too hard for you to cope with alone. Have you any family around you can go and talk to, someone to communicate with, you say you have friends perhaps a good start there. There are many positive ways to spend you time how about you join a sports club or something similar ,fill your life with positive actions, stay away from Pubs /clubs with the alcohol .this will only contribute to the drinking problem that can be making the panic /anxiety worse, Good Luck let us know how you are doing ,you have made a first step coming to talk here.